> Fly is innovative in the same way Heroku was when it launched
I've not had a chance to play with it yet, what are they doing that's innovative.
(Genuine question, not being cynical).
I've not had a chance to play with it yet, what are they doing that's innovative.
(Genuine question, not being cynical).
If you've got a worldwide audience you can set up your app in Dallas, Paris, Chennai, and Tokyo, have it auto-scale (and re-balance) instances based on which regions are the most in demand (eg, minimum 2 app servers per region, max 20 app servers, and it'll auto drift them throughout the day as needed). It also puts all your servers on a common VPN for communication, and they've got some tooling in place to help manage things like db replicas, replaying write requests back to the primary db env, etc.
It's not necessarily trivial to port any old app over (if you're doing writes every request for logging etc, that's something you'd want to change up backgrounding the writes) but it really can make a huge impact in responsiveness once you're set up.
- https://fly.io/blog/introducing-litefs/
- https://fly.io/blog/all-in-on-sqlite-litestream/
This allows for extremely cheap s3 database backups as well as fast local serving layer.
And many more deep dives on their blog - https://fly.io/blog/